Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual Data possui um Conjunto 1 de 25-20?
 ###Tabelas: CREATE TABLE winners (winners_id AUTO_INCREMENT PRIMARY KEY, Year VARCHAR, Dates VARCHAR, Champion VARCHAR, Country VARCHAR, Score VARCHAR, Tournament location VARCHAR, Purse ($) INT, Winners share ($) INT) CREATE TABLE pool_f (pool_f_id AUTO_INCREMENT PRIMARY KEY, Date VARCHAR, Time VARCHAR, Score VARCHAR, Set 1 VARCHAR, Set 2 VARCHAR, Set 3 VARCHAR, Total VARCHAR) CREATE TABLE vermont_counties_ranked_by_per_capita_income (vermont_counties_ranked_by_per_capita_income_id AUTO_INCREMENT PRIMARY KEY, County VARCHAR, Per capita income VARCHAR, Median household income VARCHAR, Median family income VARCHAR, Population INT, Number of households INT) CREATE TABLE high_school_boys (high_school_boys_id AUTO_INCREMENT PRIMARY KEY, TIME VARCHAR, ATHLETE VARCHAR, SCHOOL VARCHAR, CITY VARCHAR, DATE VARCHAR) CREATE TABLE groupe_a (groupe_a_id AUTO_INCREMENT PRIMARY KEY, Rank INT, Club VARCHAR, Points INT, Played INT, Victories INT, Draws INT, Defeats INT, Goals for INT, Goals against INT, Goal average INT)  
SELECT Date FROM pool_f WHERE Set 1 = 25–20